| 梁亚东,李颖,王霞.共价有机多孔稀土杂化材料的制备与性能[J].有色金属材料与工程,2018,39(3):23-27,31. |
| 共价有机多孔稀土杂化材料的制备与性能 |
| Preparation and Properties of Covalent Organic Porous Rare-Earth Hybrid Materials |
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| DOI：10.13258/j.cnki.nmme.2018.03.004 |
| 中文关键词: 共价有机多孔骨架 稀土配合物 光致发光 |
| 英文关键词:covalent organic porous framework rare earth complexes photoluminescence |
| 基金项目:国家自然科学基金资助项目（59493300） |
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| 中文摘要: |
| 以结构规整、密度低、热稳定性良好的共价有机多孔骨架（COF-SDU1）为基质，根据配位化学原理，将稀土β-二酮类铕配合物Eu（TTA）3-Phen引入到该多孔基质中，得到稀土杂化材料（Eu（TTA）3Phen-@COF-SDU1）。对合成材料的结构进行傅里叶变换红外光谱（FT-IR），紫外-可见光谱（UV-Vis）和N2吸附-脱附（BET）分析，结果表明，稀土杂化材料具有与COF-SDU1基质类似的IV型吸附-脱附特征曲线。热重分析表明，COF-SDU1作为良好的基质，能够显著改善稀土配合物的热稳定性。荧光性能分析表明，COF-SDU1基质不影响稀土与配体之间的能量传递。稀土杂化材料的荧光寿命相比于稀土配合物有明显提高。 |
| 英文摘要: |
| Based on principle of coordination chemistry,the rare-earth hybrid material(Eu(TTA)3Phen-@COF-SDU1) was obtained by using rare-earth β-diketonate complex(Eu(TTA)3Phen) introducing to the covalent organic porous framework(COF-SDU1) matrix with ordered structure,low density and good thermal stability.The structural analysis of the composite was characterized by FT-IR,UV-Vis and BET.The result shows that the rare earth hybrid material has similar IV-type adsorption-desorption characteristics as the COF-SDU1 matrix.Thermogravimetric test results indicate that COF-SDU1 is a good matrix which can significantly improve the thermal stability of the rare-earth complexes.The fluorescence properties demonstrate that the matrix does not influence the energy transfer between the rare-earth and the ligand.The fluorescence lifetime of rare earth hybrid materials is significantly higher than that of rare earth complexes. |
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